diff --git a/Makefile b/Makefile
index a36969a..cf9d4de 100644
--- a/Makefile
+++ b/Makefile
@@ -127,8 +127,8 @@ $(addprefix frontend/dist/,$(FRONTEND_FILES)): third-party/bulma third-party/fon
 .PHONY: run run_frontend run_backend
 
 run:
-	tmux new-window $(MAKE) run_frontend
-	tmux new-window $(MAKE) run_backend
+	tmux new-window $(MAKE) CONFIG_FILE=$(CONFIG_FILE) run_frontend
+	tmux new-window $(MAKE) CONFIG_FILE=$(CONFIG_FILE) run_backend
 
 run_frontend:
 	PATH=~/.cargo/bin:${PATH} trunk --config frontend/Trunk.toml serve --port 8000